How to regulate premature ejaculation through self-diagnosis?

Patient's question:

Patient: Male 19 years old Had masturbation a year ago, but then stopped
Six months ago had sex with a girlfriend, but ejaculated within less than 2 minutes of the penis entering the vagina, and felt lower abdominal weakness, which still persists. Sometimes he ejaculates before even penetrating. Due to a busy job, he never exercises.

Doctor's answer:

Your condition can be improved by taking Liuwei Dihuang Wan, ensuring adequate sleep, appropriately increasing nutrition, and strengthening your physique. At the same time, you should avoid smoking, alcohol, and other such intakes. Eat more Yang-enhancing foods: Yang-enhancing foods mainly include dog meat, mutton, sparrows, and walnuts.